Raise ph before SLAM?

I raised the CYA and started SLAM yesterday. Got FC to 10.5 (target 10) and CC was 3. Tested two more times throughout the day yesterday and FC did not drop and CC did drop down slightly to 2.5 last night. This morning, FC is 7.5 and CC 3. I added chlorine to get to 10 again. Just making sure I’m doing this correctly. Water looks the same. Cloudy, but I can see the bottom pretty well. There is also some foam/bubbles at the deep end. Never seen that before.
 
Your FC target should be for the amount of CYA you have in pool after adding, even if you don't see it on your test yet. Previously you said your CYA was 20 and then you said you raised it. If you raised it above 20, your FC target should be somewhere above 10. What did you raise CYA to?
 
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